WO2021114041A1 - Structure de détection étirable et son procédé de fabrication - Google Patents

Structure de détection étirable et son procédé de fabrication Download PDF

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Publication number
WO2021114041A1
WO2021114041A1 PCT/CN2019/124087 CN2019124087W WO2021114041A1 WO 2021114041 A1 WO2021114041 A1 WO 2021114041A1 CN 2019124087 W CN2019124087 W CN 2019124087W WO 2021114041 A1 WO2021114041 A1 WO 2021114041A1
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WO
WIPO (PCT)
Prior art keywords
stretchable
sensing
stretched
layer
signal transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/124087
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English (en)
Chinese (zh)
Inventor
徐茂峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Avary Holding Shenzhen Co Ltd
Qing Ding Precision Electronics Huaian Co Ltd
Original Assignee
Avary Holding Shenzhen Co Ltd
Qing Ding Precision Electronics Huaian Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Avary Holding Shenzhen Co Ltd, Qing Ding Precision Electronics Huaian Co Ltd filed Critical Avary Holding Shenzhen Co Ltd
Priority to CN201980062878.9A priority Critical patent/CN115988991B/zh
Priority to US17/281,698 priority patent/US20220124910A1/en
Priority to PCT/CN2019/124087 priority patent/WO2021114041A1/fr
Priority to TW108146287A priority patent/TWI791931B/zh
Publication of WO2021114041A1 publication Critical patent/WO2021114041A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0277—Bendability or stretchability details
    • H05K1/0283—Stretchable printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/0088—Fabrics having an electronic function
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/56—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads elastic
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/189—Printed circuits structurally associated with non-printed electric components characterised by the use of flexible or folded printed circuits
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
    • H10P95/00—Generic processes or apparatus for manufacture or treatments not covered by the other groups of this subclass
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/12—Manufacturing methods specially adapted for producing sensors for in-vivo measurements
    • A61B2562/125—Manufacturing methods specially adapted for producing sensors for in-vivo measurements characterised by the manufacture of electrodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/263—Bioelectric electrodes therefor characterised by the electrode materials
    • A61B5/27—Conductive fabrics or textiles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistors, capacitors or inductors
    • H05K1/167—Printed circuits incorporating printed electric components, e.g. printed resistors, capacitors or inductors incorporating printed resistors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/01—Dielectrics
    • H05K2201/0104—Properties and characteristics in general
    • H05K2201/0133—Elastomeric or compliant polymer
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/09218—Conductive traces
    • H05K2201/09263—Meander
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
    • H05K2201/09672—Superposed layout, i.e. in different planes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10151—Sensor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
    • H05K3/4038—Through-connections; Vertical interconnect access [VIA] connections
    • H05K3/4046—Through-connections; Vertical interconnect access [VIA] connections using auxiliary conductive elements, e.g. metallic spheres, eyelets, pieces of wire

Definitions

  • This application relates to a stretchable sensing structure and a manufacturing method thereof.
  • the general wearable smart fabric has a single sensing function of the sensing structure and the sensing structure itself has poor stretchability, which cannot satisfy people's demands on the stretchability of the sensing structure and the diversity of sensing functions at the same time. demand.
  • the resistance required for sensing the electrocardiogram of a person at rest is 50-100 ⁇ / ⁇
  • the resistance required for sensing the electrocardiogram when a person is dynamic must be increased to 300-500 ⁇ / ⁇
  • the resistance of the sensing structure in the prior art does not have variability.
  • a stretchable sensing structure includes: at least one stretchable sensing array, each stretchable sensing array includes: at least two first sensing electrodes arranged in an array; The sensing electrodes are used to sense different physiological signals; each of the first sensing electrodes includes a first stretchable substrate layer and a pre-stretched pattern layer formed on the first stretchable substrate layer And an electrode sheet formed on the first stretchable substrate layer and in electrical contact with the pre-stretched pattern layer, the material of the electrode sheet is carbon paste; a plurality of signal transmission lines, two adjacent The first sensing electrodes are electrically connected through at least one of the signal transmission lines; and at least one signal processing element; a first sensing electrode is electrically connected to the signal processing elements through a signal transmission line; the signal The processing element is used to receive and analyze the physiological signal.
  • each of the stretchable sensing arrays further includes at least one second sensing electrode; the first sensing electrodes and the second sensing electrodes are arranged in an array; the second sensing electrodes Used for sensing different physiological signals; two adjacent second sensing electrodes or adjacent one of the first sensing electrode and one of the second sensing electrodes pass through at least one of the The signal transmission line is electrically connected.
  • the second sensing electrode includes a deformable substrate, at least one zinc oxide layer formed on the deformable substrate, and at least one silver layer formed on the zinc oxide layer.
  • the signal transmission line includes a second stretchable substrate layer and a first stretched circuit layer formed on the second stretchable substrate layer.
  • the material of the first stretchable circuit layer For silver paste.
  • the first stretched wiring layer includes a plurality of first stretched wirings, each of the first stretched wirings has a first connecting contact formed at both ends of the first stretched wiring, and the first connecting contact is connected to the electrode sheet Electrical connection;
  • the signal transmission line further includes a first insulating layer formed on the first stretched circuit layer; the material of the first insulating layer is thermoplastic polyurethane or rubber.
  • the signal transmission line further includes a second stretched circuit layer formed on the first insulating layer and a second insulating layer formed on the second stretched circuit layer; the second stretched circuit The layer includes a plurality of second stretched lines, two ends of each second stretched line are formed with a second connecting contact, and the first connecting contact and the second connecting contact are attached up and down.
  • the stretchable sensing structure further includes at least one control valve, the control valve is arranged on the signal transmission line and used to control the magnitude of the current flowing through the signal transmission line, thereby controlling the sensing The resistance of the electrode.
  • a sensing electrode includes a first stretchable substrate layer, a pre-stretched pattern layer formed on the first stretchable substrate layer, and a pre-stretched pattern layer formed on the first stretchable substrate layer.
  • the electrode sheet electrically contacted by the pre-stretched pattern layer is made of carbon paste; a plurality of signal transmission lines are provided, and two adjacent first sensing electrodes are electrically connected through at least one of the signal transmission lines And providing at least one signal processing element, and electrically connecting the first sensing electrode and the signal processing element through a signal transmission line.
  • the manufacturing method of the first sensing electrode includes: providing a first stretchable substrate layer; forming a pre-stretched pattern at a predetermined position of the first stretchable substrate layer Layer; coating carbon paste on a predetermined position of the first stretchable substrate layer to form the electrode sheet, one end of the electrode sheet is electrically connected to the pre-stretched pattern layer; and exposed in the The stretched cover film is formed by coating on the pre-stretched pattern layer outside the electrode sheet to obtain the first sensing electrode.
  • the manufacturing method of the signal transmission line includes: providing a substrate; coating a stretched substrate on the substrate to obtain the second stretchable substrate layer; and screen printing silver paste on the substrate. On the second stretchable substrate layer to form the first stretched circuit layer; and drying the substrate with the second stretchable substrate layer and the first stretched circuit layer And removing the substrate to obtain the signal transmission line including a second stretchable substrate layer and a first stretched circuit layer.
  • the sensing electrode includes a first stretchable substrate layer, and a pre-stretched pattern formed on the first stretchable substrate layer Layer and an electrode sheet formed on the first stretched substrate layer and in electrical contact with the pre-stretched pattern layer, so that the sensing electrode can be stretched; 2) the stretchable feeling The sensing structure includes at least two types of sensing electrodes, so that the stretchable sensing structure is used to sense different physiological signals, thereby realizing the diversity of sensing functions; 3) Passing between two adjacent sensing electrodes
  • the signal transmission line is electrically connected, and the signal transmission line includes a second stretchable substrate layer and a first stretched circuit layer formed on the second stretchable substrate layer, and the first stretchable circuit
  • the material of the layer is silver paste, so that the signal transmission line can be stretched, so that the stretchable sensing structure can be stretched, so that the stretchable sensing structure has a variable electrical resistance.
  • FIG. 1 is a schematic diagram of a module of a stretchable sensing structure provided by the first embodiment of this application.
  • FIG. 2 is a schematic diagram of a stretchable sensing array provided by the first embodiment of the application before and after being stretched.
  • FIG. 3 is a cross-sectional view of the sensing electrode in the stretchable sensing structure shown in FIG. 1.
  • Figure 4 is a cross-sectional view of a sensing electrode that does not include a stretched cover film.
  • FIG. 5 is a cross-sectional view of the signal transmission line (including a stretchable circuit layer) in the stretchable sensing structure shown in FIG. 1.
  • Fig. 6 is a top view of the signal transmission line shown in Fig. 5.
  • FIG. 7 is a cross-sectional view of a signal transmission line (including multiple stretchable circuit layers) in the stretchable sensing structure shown in FIG. 1.
  • FIG. 8 is an enlarged schematic diagram of the signal transmission line (including multiple stretchable circuit layers) shown in FIG. 7.
  • FIG. 9 is a cross-sectional view of the signal transmission line (including multiple stretchable circuit layers and studs) in the stretchable sensing structure shown in FIG. 1.
  • Figure 10 is a cross-sectional view of a substrate.
  • FIG. 11 is a cross-sectional view after forming a first stretchable substrate layer on the substrate shown in FIG. 10.
  • FIG. 12 is a cross-sectional view after forming a first stretched circuit layer on the first stretchable substrate layer shown in FIG. 11.
  • FIG. 13 is a schematic diagram of a module of the stretchable sensing structure provided by the second embodiment of this application.
  • FIG. 14 is a cross-sectional view of the second sensing electrode shown in FIG. 13.
  • FIG. 15 is a schematic diagram of a module of the stretchable sensing structure provided by the third embodiment of this application.
  • Stretchable sensing structure 100, 200, 300 Stretchable sensing array 110, 120, 130 First sensing electrode 10
  • the first stretchable substrate layer 12 Pre-stretched pattern layer 13
  • Electrode sheet 14 Stretch cover film 15 Signal transmission line 20
  • Substrate 11 Second stretchable substrate layer twenty one
  • the first stretched circuit layer twenty two
  • the first stretched line 21
  • First contact 222 First insulating layer twenty three
  • the second stretched circuit layer twenty four Second stretch line 241 Second contact 242 Second insulating layer 25
  • Button Conductive part 261 Decoration Department 262 Second sensing electrode 30
  • Deformable substrate 31
  • Zinc oxide layer 32
  • Silver layer 33 Control valve 40 Signal processing element 130
  • the present application provides a stretchable sensing structure 100, which is applied to a wearable smart fabric (not shown) for sensing human body Different physiological signals in the state.
  • the stretchable sensing structure 100 includes at least one stretchable sensing array 110.
  • the stretchable sensing array 110 includes at least two first sensing electrodes 10 and a plurality of signal transmission lines 20, and at least one of the signal transmission lines 20 passes between two adjacent first sensing electrodes 10 Electric connection.
  • the stretchable sensing structure 100 further includes at least one signal processing element 130.
  • the signal processing element 130 is electrically connected to one of the first sensing electrodes 10 through at least one of the signal transmission lines 20.
  • the stretchable sensing structure 100 includes two stretchable sensing arrays 110 and one signal processing element 130.
  • Each stretchable sensing array 110 includes 9 first sensing electrodes 10 and 13 signal transmission lines 20. Wherein, nine of the first sensing electrodes 10 are arranged in a 3*3 array.
  • the number of the stretchable sensing array 110 and the signal processing element 130 is not limited to two and one, and the number of the first sensing electrode 10 and the signal transmission line 20 It is not limited to 9 and 11, and the array arrangement of the first sensing electrodes 10 is not limited to a 3*3 array, but can be determined according to actual conditions.
  • the stretchable sensing array 110 can be deformed under the action of an external force, and will return to the initial state after the external force is removed.
  • each of the first sensing electrodes 10 includes a first stretchable substrate layer 12, a pre-stretched pattern layer 13 formed on the first stretchable substrate layer 12, and forming The electrode sheet 14 on the first stretchable substrate layer 12 and in electrical contact with the pre-stretched pattern layer 13.
  • the first sensing electrode 10 is used to sense current signals, such as: electrocardiogram (electrocardiogram), electromyography (EMG), respiration rate, ocular vibration electrical signal (ocular vibration electrical signal) Figure), electroencephalogram (electroencephalogram), evoked electroencephalogram (evoked electroencephalogram), etc.
  • current signals such as: electrocardiogram (electrocardiogram), electromyography (EMG), respiration rate, ocular vibration electrical signal (ocular vibration electrical signal) Figure), electroencephalogram (electroencephalogram), evoked electroencephalogram (evoked electroencephalogram), etc.
  • the first stretchable substrate layer 12 is stretched when subjected to an external force, and returns to the original state after the external force is removed.
  • the material of the first stretchable substrate layer 12 may be thermoplastic polyurethane (TPU), rubber, etc., which stretch when subjected to an external force and return to the original state after the external force is removed.
  • TPU thermoplastic polyurethane
  • the material of the pre-stretched pattern layer 13 is silver paste.
  • the material of the electrode sheet 14 is carbon paste.
  • each of the first sensing electrodes 10 further includes a stretched cover film 15, and the stretched cover film 15 covers the pre-stretched pattern layer 13 exposed outside the electrode sheet 14.
  • the stretch cover film 15 is used to protect the pre-stretched pattern layer 13 to prevent the pre-stretched pattern layer 13 from being oxidized.
  • the material of the stretch cover film 15 is TPU, rubber, or the like.
  • R the resistance formula
  • ⁇ the resistivity
  • L the length of the resistor
  • S the cross-sectional area of the resistor.
  • the signal transmission line 20 includes a second stretchable substrate layer 21 and a first stretched circuit layer 22 formed on the second stretchable substrate layer 21.
  • the material of the second stretchable substrate layer 21 may be thermoplastic polyurethane (TPU), rubber, etc., which stretch when subjected to an external force and return to the original state after the external force is removed.
  • TPU thermoplastic polyurethane
  • the material of the first stretchable circuit layer 22 is silver paste.
  • the first stretched circuit layer 22 includes a plurality of first stretched wires 221, and two ends of each of the first stretched wires 221 are formed with a first connecting contact 222, and the first connecting contact 222 is used for It is electrically connected to the electrode sheet 14.
  • first stretching lines 221 may be electrically connected through the first connecting contacts 222, or may not be electrically connected.
  • the first stretching line 221 has a horseshoe shape. In other embodiments, the first stretching line 221 may also be formed in a linear shape or a zigzag shape.
  • the line widths of the plurality of first stretched lines 221 may be different or the same.
  • the line widths of the plurality of first stretched lines 221 are 3 mm, 1 mm, 0.7 mm, 0.5 mm, and 0.3 mm. In other embodiments, the line width of the plurality of first stretched lines 221 is not limited to the above-mentioned value.
  • the signal transmission line 20 further includes a first insulating layer 23 formed on the first stretched circuit layer 22, and a first insulating layer 23 formed on the first insulating layer 23.
  • the material of the first insulating layer 23 and the second insulating layer 25 is TPU, rubber or the like.
  • the material of the second stretched circuit layer 24 is silver paste.
  • the second stretched circuit layer 24 includes a plurality of second stretched circuits 241, and two ends of each second stretched circuit 241 are formed with a second connecting contact 242.
  • the first connecting contact 222 is The second connecting contact 242 is attached up and down.
  • the second stretching line 241 has a horseshoe shape. In other embodiments, the second stretching line 241 may also be formed in a linear shape or a zigzag shape.
  • the line widths of the second stretched lines 241 may be different or the same.
  • the line widths of the plurality of second stretching lines 241 are 3 mm, 1 mm, 0.7 mm, 0.5 mm, and 0.3 mm. In other embodiments, the line width of the plurality of second stretched lines 241 is not limited to the above-mentioned value.
  • the signal transmission line 20 further includes more stretched circuit layers and insulating layers.
  • the signal transmission line 20 further includes at least one nail button 26, the nail button 26 includes a conductive portion 261 and a decorative portion 262, the conductive portion 261 is vertically connected to the The decorative portion 262, the conductive portion 261 is electrically connected to the second stretched circuit layer 24 and the first stretched circuit layer 22.
  • the decoration portion 262 is oval-like and is used to beautify the appearance of the stretchable sensing structure 100.
  • the present application also provides a manufacturing method of the stretchable sensing structure 100, which includes the following steps:
  • a plurality of first sensing electrodes 10 as described above are provided.
  • the second step is to provide a plurality of signal transmission lines 20 as described above.
  • the third step is to provide a plurality of signal processing elements 130 as described above.
  • the fourth step is to arrange a plurality of first sensing electrodes 10 as described above in an array, and electrically connect two adjacent first sensing electrodes 10 through at least one of the signal transmission lines 20, and pass at least The signal transmission line 20 electrically connects the signal processing element 130 and the first sensing electrode 10.
  • the first sensing electrode 10 is manufactured through the following steps:
  • a first stretchable substrate layer 12 is provided, a pre-stretched pattern layer 13 is formed at a predetermined position of the first stretchable substrate layer 12, and the The predetermined position of the first stretchable substrate layer 12 is coated with carbon paste to form the electrode sheet 14 so that one end of the electrode sheet 14 is electrically connected to the pre-stretched pattern layer 13.
  • the stretched cover film 15 is formed by coating the pre-stretched pattern layer 13 exposed outside the electrode sheet 14 to obtain the first sensing electrode 10.
  • the signal transmission line 20 (taking the second stretchable substrate layer 21 and the first stretched circuit layer 22 as an example) can be manufactured through the following steps:
  • the substrate 11 is a suitable glass plate.
  • a stretched substrate is coated on the substrate 11 to obtain the second stretchable substrate layer 21.
  • silver paste is screen printed on the second stretchable substrate layer 21 to form the first stretched circuit layer 22.
  • the substrate 11 with the second stretchable base material layer 21 and the first stretched circuit layer 22 is placed in a drying device (not shown) for drying After taking it out, the substrate 11 is removed to obtain the signal transmission line 20 including the second stretchable base material layer 21 and the first stretched circuit layer 22.
  • the drying temperature is 80°C
  • the drying time is 1 hour.
  • the second embodiment of the present application provides a stretchable sensing structure 200
  • the structure of the stretchable sensing structure 200 is basically the same as the structure of the stretchable sensing structure 100
  • the stretchable sensing array 120 of the stretchable sensing structure 200 includes at least one of the first sensing electrode 10, a plurality of the signal transmission lines 20, and at least one second sensing electrode 30
  • the first sensing electrodes 10 and the second sensing electrodes 30 are arranged in an array, two adjacent first sensing electrodes 10 or two adjacent second sensing electrodes 30 Or, one adjacent first sensing electrode 10 and one second sensing electrode 30 are electrically connected through at least one signal transmission line 20.
  • one of the first sensing electrodes 10 is electrically connected to the signal processing element 130.
  • a second sensing electrode 30 may also be electrically connected to the signal processing element 130.
  • the second sensing electrode 30 is used to sense signals such as pressure and temperature.
  • the second sensing electrode 30 includes a deformable substrate 31 and at least one zinc oxide layer 32 formed on the deformable substrate 31 and at least one silver layer formed on the zinc oxide layer 32 33.
  • four zinc oxide layers 32 and three silver layers 33 are formed on the two opposite surfaces of the deformable substrate 31 of the second sensing electrode 30.
  • the number of the zinc oxide layer 32 and the silver layer 33 is not limited to the number mentioned above and can be determined according to the reagent conditions.
  • the deformable substrate 31 can be deformed under the action of an external force, and will return to the initial state after the external force is removed.
  • the material of the deformable substrate 31 may be thermoplastic polyurethane (thermoplastic polyurethane, TPU), rubber or polyimide (PI), polyethylene terephthalate (PET) or polyethylene naphthalate.
  • thermoplastic polyurethane thermoplastic polyurethane
  • PI polyimide
  • PET polyethylene terephthalate
  • Non-stretchable substrates such as glycol ester (PEN).
  • a third embodiment of the present application provides a stretchable sensing structure 300.
  • the structure of the stretchable sensing structure 300 is basically the same as the structure of the stretchable sensing structure 200, with the difference
  • the stretchable sensing array 140 of the stretchable sensing structure 300 further includes at least one control valve 40, and the control valve 40 is arranged on the signal transmission line 20 and used to control the flow of the signal.
  • the magnitude of the current of the transmission line 20 controls the resistance of the first sensing electrode 10 and/or the second sensing electrode 30.
  • the stretchable sensing array 140 of the stretchable sensing structure 300 may not include the second sensing electrode 30.
  • the stretchable sensing structure further includes more other sensing electrodes with different sensing functions, and is not limited to the first sensing electrode 10 and the second sensing electrode 10 Sense electrode 30.
  • the present application also provides a wearable smart fabric (not shown), the wearable smart fabric includes a fabric (not shown), and the wearable smart fabric further includes the stretchable sensor as described above At least one of the structures 100, 200, 300, and at least one of the stretchable sensing structures 100, 200, 300 is fixed on or in the fabric.
  • the sensing electrode includes a first stretchable substrate layer, and a pre-stretched pattern formed on the first stretchable substrate layer Layer and an electrode sheet formed on the first stretched substrate layer and in electrical contact with the pre-stretched pattern layer, so that the sensing electrode can be stretched; 2) the stretchable feeling The sensing structure includes at least two types of sensing electrodes, so that the stretchable sensing structure is used to sense different physiological signals, thereby realizing the diversity of sensing functions; 3) Passing between two adjacent sensing electrodes
  • the signal transmission line is electrically connected, and the signal transmission line includes a second stretchable substrate layer and a first stretched circuit layer formed on the second stretchable substrate layer, and the first stretchable circuit
  • the material of the layer is silver paste, so that the signal transmission line can be stretched, so that the stretchable sensing structure can be stretched, so that the stretchable sensing structure has a variable electrical resistance.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

L'invention concerne une structure de détection étirable (100) et son procédé de fabrication. La structure de détection étirable (100) comprend un réseau de détection étirable (110). Le réseau de détection étirable (110) comprend : au moins deux premières électrodes de détection (10) disposées en un réseau, les premières électrodes de détection (10) étant utilisées pour détecter différents signaux physiologiques, chaque première électrode de détection (10) comprenant une première couche de substrat étirable, une couche de motif pré-étirée formée sur la première couche de substrat étirable, et une feuille d'électrode formée sur la première couche de substrat étirable et en contact électrique avec la couche de motif pré-étirée, et la feuille d'électrode étant constituée d'une pâte de carbone ; et une pluralité de lignes de transmission de signal (20), toutes les deux premières électrodes de détection adjacentes (10) étant électriquement connectées au moyen des lignes de transmission de signal (20). La structure de détection étirable comprend en outre un élément de traitement de signal (130), les premières électrodes de détection (10) étant électriquement connectées à l'élément de traitement de signal (130) au moyen des lignes de transmission de signal (20). La structure de détection étirable (100) a une bonne aptitude à l'étirage, diverses fonctions de détection et une résistance variable.
PCT/CN2019/124087 2019-12-09 2019-12-09 Structure de détection étirable et son procédé de fabrication Ceased WO2021114041A1 (fr)

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CN201980062878.9A CN115988991B (zh) 2019-12-09 2019-12-09 可拉伸感测结构及其制作方法
US17/281,698 US20220124910A1 (en) 2019-12-09 2019-12-09 Stretchable sensing structure and method for manufacturing stretchable sensing structure
PCT/CN2019/124087 WO2021114041A1 (fr) 2019-12-09 2019-12-09 Structure de détection étirable et son procédé de fabrication
TW108146287A TWI791931B (zh) 2019-12-09 2019-12-17 可拉伸感測結構及其製作方法

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